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All results from a given calculation for C6H2 (hexatriyne)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-229.593466
Energy at 298.15K-229.591214
HF Energy-229.593466
Nuclear repulsion energy144.158387
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B1B95/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 3480 3336 0.00      
2 Σg 2335 2239 0.00      
3 Σg 2120 2032 0.00      
4 Σg 639 613 0.00      
5 Σu 3481 3337 208.09      
6 Σu 2240 2147 0.80      
7 Σu 1215 1165 3.27      
8 Πg 621 595 0.00      
8 Πg 621 595 0.00      
9 Πg 448 430 0.00      
9 Πg 448 430 0.00      
10 Πg 277 265 0.00      
10 Πg 277 265 0.00      
11 Πu 594 569 89.75      
11 Πu 594 569 89.75      
12 Πu 469 450 0.79      
12 Πu 469 450 0.79      
13 Πu 114 109 4.00      
13 Πu 114 109 4.00      

Unscaled Zero Point Vibrational Energy (zpe) 10277.9 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 9852.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B1B95/6-311G*
B
0.04451

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.608
C2 0.000 0.000 -0.608
C3 0.000 0.000 1.963
C4 0.000 0.000 -1.963
C5 0.000 0.000 3.171
C6 0.000 0.000 -3.171
H7 0.000 0.000 4.234
H8 0.000 0.000 -4.234

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8
C11.21561.35492.57052.56293.77853.62634.8419
C21.21562.57051.35493.77852.56294.84193.6263
C31.35492.57053.92541.20805.13342.27146.1968
C42.57051.35493.92545.13341.20806.19682.2714
C52.56293.77851.20805.13346.34141.06347.4048
C63.77852.56295.13341.20806.34147.40481.0634
H73.62634.84192.27146.19681.06347.40488.4682
H84.84193.62636.19682.27147.40481.06348.4682

picture of hexatriyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 C5 180.000
C2 C1 C3 180.000 C2 C4 C6 180.000
C3 C5 H7 180.000 C4 C6 H8 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.042      
2 C 0.042      
3 C -0.352      
4 C -0.352      
5 C 0.010      
6 C 0.010      
7 H 0.300      
8 H 0.300      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.330 0.000 0.000
y 0.000 -35.330 0.000
z 0.000 0.000 -14.474
Traceless
 xyz
x -10.428 0.000 0.000
y 0.000 -10.428 0.000
z 0.000 0.000 20.856
Polar
3z2-r241.712
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.458 0.000 0.000
y 0.000 3.458 0.000
z 0.000 0.000 25.193


<r2> (average value of r2) Å2
<r2> 224.880
(<r2>)1/2 14.996